baber/WOPTO huggingface dataset:
Patent GB-999355-A (GB)
Title: Improvements in and relating to recuperators
IPC: F23M20/00
Filed: 1963-09-17
Abstract: 999,355. Recuperators for heating air. INDUSTRIE - COMPANIE KLEINEWEFERS KONSTRUKTIONS - UND HANDELSGESELLSCHAFT G.m.b.H. Sept. 17, 1963 [Nov. 3, 1962], No. 36587/63. Heading F4S. In a recuperator comprising a Z or U-shaped heating gas conduit, in the centre section of which tubes carrying air to be heated are arranged at right angles to the direction of flow of the heating gas, one or several by-pass conduits are arranged substantially parallel to the central section of the heating gas conduit, one end of each of said by-pass conduits communicating with that half of the cross-sectional area of the central section of the heating gas conduit adjacent the lead-in conduit and between the lead-in conduit and the air-carrying tubes, and the other end of each by-pass conduit communicating with the heating gas conduit at a point at least beyond the first air tube, as viewed in the direction of flow of the heating gas. In the form shown, the heating-air conduit 1 comprises a duct 4 provided with a lead-in conduit 2 and a discharge conduit 3. Air to be heated passes from the inlet 9, through the multipass system comprising tubes 5, 6, 7, 8 and connecting conduits 10, 11, 12, to an outlet opening 13. Positioned within the side wall 23 of the heating gas conduit, and substantially parallel therewith, are a series of by-pass conduits 16, 17, the lower ends of which connect with substantially horizontal conduits 21, which are formed within the conduit wall above the lead-in conduit 2 and have openings 20 connecting into the duct 4. The by-pass passages are also connected into the conduit 4 via openings 22, 24, 25 positioned between the sets of air tubes 5, 6, 7, 8. These openings are provided with flaps or slide valves for opening and closing the outlets therethrough, the actuating means for the valves or flaps being adapted to enable variation of the amount of heating gas passing therethrough. If the recuperator comprises two adjacent heating gas conduits (Fig. 2, not shown), the by-pass conduits are positioned in the separating wall and serve both conduits.
Patent GB-836937-A (GB)
Title: Stabilized hydrocarbon polymeric materials
IPC: C08K5/375
Filed: 1957-11-26
Abstract: Mono-olefinic polymers are stabilized against thermal and ultra-violet degradation by incorporating therein a mixture of particulate carbon, and a sulphur compound containing at least one dicyclic-disulphide unit having the general formula R-S-S-R1 in which R and R1 are ring structures in which the maximum number of carbon atoms in each of the said ring structures including substituents, is 30.  The polymers may be homopolymers of ethylene, propylene, butene-1, 3-methyl butene-1, 4 - methyl pentene - 1, 4,4 - dimethyl pentene-1, dodecene-1, or 3-methyl pentene-1.  The Specification contains a very long list of suitable compounds falling within the scope of the general formula and also mention is made of polymers containing units corresponding to the formula made by oxidation of dithiohydroquinone.  Exemplified compounds are diphenyl disulphide, diacetanilide disulphide, N,N1-dimorpholine disulphide, and benzothiazyl disulphide.  The particle size of the carbon black should not exceed 1000 Angstroms.  The stabilized polymers may be used as cable sheathings or wire conductor insulators.
Patent GB-866460-A (GB)
Title: Racks
Inventor: FIDGEON JOHN EDWARD
IPC: A47B81/00
Filed: 1958-11-17
Abstract: 866,460. Racks. JENKINS FIDGEON Ltd. Nov. 16, 1959 [Nov. 17, 1958], No. 36863/58. Class 52(3). A rack for magnetic tape spools or similar cylindrical articles to be held side by side comprises end members 4 as feet and handles, longitudinal member 5 and transverse U- shaped members 6 between which are fixed connecting pieces F displaced from the edge so that similar articles placed side by side in the rack are given a relative lateral and vertical displacement.
Patent GB-1157351-A (GB)
Title: Washing Machine System and Parts Thereof
IPC: D06F33/10
Filed: 1966-08-17
Abstract: 1,157,351. Washing-machines. ROBERTSHAW CONTROLS CO. 17 Aug., 1966 [9 Sept., 1965], No. 36886/66. Heading D1A. A washing machine comprises an expandable pulley which is controlled from a pneumatic diaphragm which diaphragm is controlled by a second diaphragm operated through a programme control device. As shown in Fig. 6 a flexible tube 121 is connected to a source of low pressure and when operated draws the diaphragm 140 upwardly against the action of spring 173. The chamber 141 is connected to a second chamber 143 via a channel 176 a chamber 177 and a tube 178. As the chamber 141 is exhausted the chamber 143 is also exhausted and the second diaphragm 142 rises till the end 179 of the tube 178 is sealed thereby thus causing the cessation of depressurisation. The movement ofdiaphragm 142 causes the lever 134 to move and pushes the sheaf 130 of pulley 128 closer to -the sheaf 129 acid thus increase the drive ratio of the electric motor 11. Ports e.g. 189 are provided in the speed controller 120 to increase the pressure therein if it falls below the desired value. The ports 189 may be opened in a modification (not shown) by the vibration of an external weight which vibrates due to a state of imbalance in the machine at high speeds of rotation. The pressure in the lane 121 is controlled by a regulator (not shown) which comprises a diaphragm mounted in a closed container between two opposed springs. The state of balance of the springs controls the pressure and one spring is manually adjustable. A programme control device is positioned in the air line between the regulator and speed controller and this takes the form of a sheet with blisters therein which blisters can cover two parts in a reading head and thus produce an air passage. A similar pneumatic control is provided for water temperature selection and liquid level controls. Switches control a pump and ensure that the agitator cannot be started before the water container is full. The electric motor drive operates one way for agitation and the opposite way for spin drying separate pressure regulators being provided for each process each however controlling the same speed controller 120.
Patent GB-1242090-A (GB)
Title: Improvements in or relating to the production of sheets of skin for use in grafting operations
Inventor: BARINKA LADISLAV
IPC: A61B17/322
Filed: 1968-08-02
Abstract: 1,242,090. Dermatome. CHEPOS, ZAVODY CHEMICKEHO A POTRAVINARSKEHO STROJIRENSTVI OBOROVY PODNIK. 2 Aug., 1968, No. 36960/68. Heading A5R. [Also in Divisions C6 and G2] A dermatome comprises an upwardly directed convex part-cylindrical surface 11 for supporting a workpiece, mounted on a stand 1, a rotary and axially reciprocable shaft 8 mounted on the workpiece support coaxially with the surface, longitudinally adjustable radial arms 13 mounted on the ends of the shaft for rotation therewith and a blade 15 extending axially between the outer ends of the arms, the arrangement being such that the blade is radially adjustable relative to the surface, pivotal over the surface and simultaneously axially reciprocable to slice the workpiece. As described the workpiece support comprises a semicylindrical drum with ends 10 attached to sleeve 5, the sleeve having bearings 7 which mount the shaft 8 and are mounted for rotation in forks 2 of the stand. The drum is pivotally adjustable and held in working position by clamping arms 21 pressing friction discs 9 on the ends 10 against the forks 2.
Patent GB-1271856-A (GB)
Title: Analog to digital converter
IPC: H03M1/00
Filed: 1969-07-23
Abstract: 1,271,856. Analogue/digital converters. INTERNATIONAL STANDARD ELECTRIC CORP. 23 July, 1969 [26 July, 1968], No. 36999/69. Heading G4H. [Also in Division G1] After a first capacitor C1 (Fig. 1) has been charged to a value dependent on an analogue input signal across terminal el, e2 a second capacitor C2 is connected in series with it so that the first capacitor C1 discharges a fixed quantity of electricity U.C2 into the second capacitor C2, capacitor C2 then being discharged. This process is repeated and the number of increments of electricity transferred to the second capacitor counted to give a digital indication of the input signal. The count may be displayed on Nixie tubes together with a polarity signal. Alternatively a standard signal may be applied across input terminals e1, e2 and the capacitance of capacitor C1 measured. As described during time T1 a switch P1 is closed so that with a positive input signal capacitor Cl charges to a positive level. At the start of time interval T2 switch P1 is opened and switch P4 is closed to connect capacitor C1 in series with capacitor C2. Each time the junction E of the capacitors is at zero potential a comparator CO delivers (1) a counting pulse to counter C p  and (2) a pulse to control circuit CD to open switch P4 and close switch P5 to short circuit capacitor C2 until the potential of junction E drops to -U when the switch P4 is reclosed to recharge capacitor C2, this process being repeated until capacitor C1 is discharged. At the start of time interval Tx1 switch P2 is closed to charge capacitor C1 to a negative level but since the potential of junction E remains negative the comparator CO does not operate. Light POS is illuminated to indicate a positive input since the comparator output c exists during time T2. With a negative input, during time T2 the junction E remains negative capacitor C1 being charged to a positive level during time interval T<SP>x</SP>1 and incrementally discharged during time T<SP>x</SP>2. A lamp Neg is then lit since the comparator output exists during time T<SP>x</SP>2.
Patent GB-936721-A (GB)
Title: Means for effecting a connection between a coiled spring and another part
Inventor: WARNE EUGENE HAROLD
IPC: F16F1/12
Filed: 1959-11-02
Abstract: 936,721. Releasable fastenings. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 21, 1960 [Nov. 2, 1959], No. 37076/59. Class 44. [Also in Group XXXII] Means for effecting a connection between a coiled spring 4 and another part 5 includes a pair of spaced lugs 6 on the part 5 the lugs defining between them a recess accommodating a loop at the end of the spring, the lugs having formed in them holes accommodating a pin 8 extending transversely between the lugs and through the loop of the spring, the distance between the holes and the base of the recess being less than the diameter of the wire from which the spring is formed and the pin having a circumferentially extending groove 9 in its portion disposed between the lugs in which the wire is normally accommodated to limit axial movement of the pin, the extremity 4a of the wire forming the loop being of reduced crosssection in order to admit of the axial insertion or removal of the pin from the loop when relative angular movement has been imparted to the spring and said part 5.
Patent GB-780669-A (GB)
Title: Means for reversing the thrust of a jet engine
Inventor: RAINBOW HORACE SINCLAIR
IPC: F02K1/56
Filed: 1954-12-23
Abstract: 780,669. Jet propulsion plant. ARMSTRONG SIDDELEY MOTORS, Ltd. Dec. 19, 1955 [Dec. 23, 1954], No. 37137/54. Class 110 (3). [Also in Group XXXIII] A jet engine has a nozzle movable between operative and inoperative positions, and a number of movable thrust reversing sections which normally lie in inoperative positions outside the jet pipe, and are movable inwardly towards one another to operative positions when the nozzle is inoperative, so as jointly to provide a conical series of aerofoil-shaped rings to reverse partially the direction of flow of a major part of the jet. The device is shown in plan view and section when inoperative in Figs. 1 and 3, and in section when operative in Fig. 4. The jet pipe comprises three concentric tubes 10a, 10b and 10c within a fairing 11. The nozzle 13 is mounted on a ring 14 secured to fairing 15. A plurality of circumferentially spaced rods 17 are fast at one end to the ring 14, and are movable by reversible actuators 28 mounted on an annular member 29 secured to a ring 30 fastened to the fairing 11. The rods 17 are also secured intermediately to a ring 26 by pins 27. Thus on operation of the actuators 28, the rods 17 together with ring 26 and nozzle 13 are moved bodily fore or aft. A plurality of beams 33 are pivoted at their forward ends to the ring 26 on pivots 32, and each bears a series of shaped members 34. When the nozzle is in its forward inoperative position, Figs. 1 and 3, the beams lie parallel to the nozzle axis between the jet pipe and fairing. The free ends of the beam are restrained in this position by spring-held forks 51, 52, Fig. 3. A forward extension 35 of each beam 33 is connected by a toggle link 37, 38 to ring 26, the centre pivot of the toggle being connected by a link 44 to a rod 43 extending through a bearing in ring 92 and terminating in a grooved member 48 and stop 49. When the nozzle and ring 26 have moved rearwardly most of their travel, the stop 49 abuts ring 29, and further rearward movement straightens the toggle 37, 38, tilting each beam 33 and bringing the members 34 into co-operating jet reversing position, Fig. 4. The grooved member 48 also is engaged by spring- pressed balls on ring 29, Fig. 5 (not shown). The tilting moment is sufficient to release the free ends of the beams from the forks 51, 52. On the reverse movement taking place, the rod 43 is first held by the spring-pressed balls, whereby the toggle is broken and the beams are swung parallel to the nozzle axis, re-engaging with forks 51, 52. Further movement retracts the beams between the jet pipe and fairing, and retracts the nozzle to its normal operative position.
Patent GB-302369-A (GB)
Title: An improvement in photographic roll film spools
IPC: G03B17/30
Filed: 1928-12-15
Abstract: 302,369. I. G. Farbenindustrie Akt.- Ges. Dec. 16, 1927, [Convention date]. Feeding webs.-To facilitate threading of the end of a paper strip through the sheet-metal cylindrical core 1 of a spool, the core is provided with two oppositelydisposed longitudinal slots, of which the entrance slot 3 is narrow, while the exit slot 4 is wider than the slot 3, and is also wider at its middle than at its end. This slot, if short, may have a narrow extension slot at each end.
Patent GB-452767-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D43/16
Filed: 1934-12-28
Abstract: 452,767. Positive clutches; variablespeed gearing. CHRYSLER CORPORATION, 341, Massachusetts Avenue, Highland Park, Michigan, U.S.A.-(Assignees of Ploetz, W. F.) Dec. 28, 1934, No. 37167. Convention date, Jan. 18. [Class 80 (ii)] A centrifugal clutch C comprises a pair of dogs 46, Fig. 3,slidable radially under the action of centrifugal force between guides 42, extending longitudinally from a driven member 23, Fig. 1, into engagement with slots 61 in a driving drum 39, the dogs being normally retracted by springs 54, adjustable by screws 56 through the slots 61, and being extended at 47, 49 so as to be counterbalanced to a substantial extent. The tail 49 of each dog slides between the other dog and one of the guides 42. The dogs have chamfered ends 70 whereby engagement is precluded if the driving member is overrunning the driven member. Additional restraint to the outward movement of the dogs is provided by a spring detent 51 in each dog co-operating with a recess 53 in the tail 49 of the other dog. The clutch is shown in Fig. 1 as embodied in an auxiliary twospeed gear for a motor-vehicle, giving direct and over - drive speeds. The tail shaft 13 of the usual gear-box A is connected to the cardan shaft 18 through a free-wheel roller clutch D, and has splined thereon a collar 36 controlled by the reverse selector bar 12, whereby the collar is normally in claw engagement with the driving drum 39 of the centrifugal clutch C, while when reverse gear is engaged the collar is moved into claw engagement with the shaft 18. The wheel 23, loose on the shaft 13, is geared to the shaft 18 by countershaft gearing which, when the clutch C is engaged, gives an over-drive. Thus, at the critical speed of the member 23 at which the dogs tend to move outwards, the shaft 13 must be slowed down until the member 23 overruns the drum 39, when engagement of the dogs will take place. Alternatively, the drum 39 may be driven from the shaft 18 and the dogs from the shaft 13. Specification 454,789 is referred to. The Specification as open to inspection under Sect. 91 comprises also the provision of an additional recess 100, Fig. 10 (Cancelled), in each tail 49, with which the detent 51 in the other dog engages upon engagement of the clutch, whereby disengagement is prevented until the speed falls considerably below the critical engagement speed, the dogs being caused to move in unison by means of a loose ring having radial slots engaging pins 94 mounted in the extensions 47 of the dogs. It also comprises a construction, shown in Fig. 8 (Cancelled), in which the dogs 46 have no counterbalancing extensions and two-armed retracting springs 150, each coiled at its centre around a pin 148 mounted in a dog, are employed, the ends of the arms engaging screws 152 adjustably mounted in the guides 42. This subject-matter does not appear in the Specification as accepted.
Patent GB-622755-A (GB)
Title: Improvements in drums or canisters
IPC: B65D6/02
Filed: 1946-12-18
Abstract: 622,755. Drums or canisters. PATON, CALVERT, & CO., Ltd., and PATON, W. Dec. 18, 1946, No. 37207. [Class 66] A drum or canister with a cylindrical. oval, or polygonal body 1 of metal or cardboard &c. has a head 3, which may be inclined as illustrated, recessed over a horse shoe-shaped area 7 to leave mid-rib 6 which constitutes an internal channel for directing the contents towards the outlet 9 which may be closed by a plug or cap.
Patent GB-889940-A (GB)
Title: Improvements in, or relating to, electric induction heaters
Inventor: HUMPHREYS GEORGE
IPC: C21D9/30
Filed: 1956-12-07
Abstract: 889,940. Induction heaters. A.E.I.-BIRLEC Ltd. March 7, 1958 [Dec. 7, 1956], No. 37414/56. Class 39(3) An induction heater comprises a transformer having a secondary winding the ends of which are connected to corresponding ones of two parallel adaptor plates having marginal zones located between two halves of two or more split inductor units so that by moving the two halves of any one of the units into contact with one another and with corresponding ones of the said plates, a circuit is completed through the winding plates and unit. As shown, an induction heater comprises a partition 1 on one side of which is mounted a transformer 2 consisting of a multiturn primary and a single-turn secondary in the form of a copper shell 10 with a longitudinal split 11, a pair of parallel adaptor plates 3, 4 mounted on the other side of the partition and electrically connected to the respective ends of the secondary and insulated one from the other, and three split inductor units (Fig. 1 not shown) each of which can be opened and closed by a corresponding actuating mechanism which includes a toggle linkage. The marginal zone of each adaptor plate is formed with three arms 21, 22 and 23, corresponding to the number of inductor units, each having a silver contact pad 24, the corresponding arms 21 and 23 of each plate being so shaped as to form between them an eye 25 into which a metal plug may be inserted to vary the power absorbed by the corresponding inductor unit without affecting the power absorbed by the other unit. Each inductor unit comprises two halves 33,34 each having contact pads 64 and 65 so that in the closed position, wherein the halves embrace a workpiece to be heated, the pads 64 seat on the pads 24 of the adaptor plates and the pads 65 seat one upon the other thereby closing a circuit through the secondary winding, the adaptor plates, and the inductor unit. The halves 33, 34 are pivotally mounted in boxes 40 and 36 which are themselves mounted upon a pair of axially reciprocable rods 30, box 36 being fixed to the rods and box 40 being slidable relatively to and longitudinally of the rods and being coupled to the rods through a toggle linkage consisting of pairs of arms 42 and 43 the elbows of which are pivoted upon a pin 46 guided in a slide 47 for reciprocal movement along a path parallel to the adaptor plates to impart simultaneous movement in opposite directions to the inductor halves so that they are brought together, the drive to the toggle elbow being effected by the piston rod 51 of a hydraulic or pneumatic cylinder 50..
Patent GB-785615-A (GB)
Title: Improvements in or relating to brake linings
IPC: F16D69/02
Filed: 1954-12-28
Abstract: 785,615. Brake linings. SAMY, A. April 18, 1955 [Dec. 28, 1954No. 37432/54. Class 103 (1). In order to prevent " squeal " in brakes, the brake shoes are provided with brake linings in which a dry lubricant, formed of individual granules of graphite or mica, is disseminated in the body of the brake lining during manufacture to provide lubrication of the friction surfaces as the lining wears down. Specification 656,324 is referred to.
Patent GB-1396740-A (GB)
Title: Process and installation for the manufacture of sheet glass
IPC: C03B18/14
Filed: 1972-08-10
Abstract: 1396740 Float glass process BATTELLE MEMORIAL INSTITUTE 10 Aug 1972 [11 Aug 1971] 37447/72 Addition to 1361821 Heading C1M In a modification of the process described in Specification 1,361,821, the thickness of the ribbon is reduced by imposing on the ribbon a gaseous pressure over a width of the ribbon smaller than its total width at ambient pressure, increasing the width of the pressure applied to the now widened ribbon to a width less than the widened ribbon and repeating these steps until a ribbon of the desired thickness is obtained. As shown the pressure may be applied utilizing a device 7 having a first chamber formed by caps 8, 9 which may be optionally supplied with pressure fluid through conduit 13 controlled by valve 14 which chamber has a discharge opening in the form of an elongate loop for applying pressure over a narrower width and a second chamber formed by caps 9, 11 and supplied via conduit 16 which also has a discharge opening in the form of an elongate loop for applying pressure over a wider width. Alternatively (Fig. 6c) the pressure is applied using a device comprising a plurality of chambers 18, 20, 34, 36 arranged in tandem longitudinally the second and subsequent chamber having laterally movable slides 21 which operate to extend the width of the chambers, each chamber having a pressure fluid discharge opening around the periphery of said chamber as defined by the slide.
Patent GB-1186520-A (GB)
Title: Improvements in or relating to 5-(Piperidine-4-Spiro)-Oxazolidin-2-ones and process for preparing same
Inventor: MAILLARD JACQUES GEORGES ALBER
IPC: C07D498/10
Filed: 1966-08-22
Abstract: 1,186,520. 5 - (Piperidine - 4 - spiro) - oxazolidin-2-ones. LABORATOIRES JACQUES LOGEAIS. 11 Aug., 1967 [22 Aug., 1966], No. 37477/66. Heading C2C. Novel 5 - (piperidine - 4 - spiro) - oxazolidin- 2-ones, of formula wherein R 1  is hydrogen, alkyl, aralkyl, or #- aroylalkyl, R 2  is alkyl or aryl, R 3  is hydrogen, alkyl, alkenyl, alkynyl, alkanoyl, aralkyl, or aroyl; and aryl and aroyl groups may be substituted by halogen (including fluorine), alkyl, hydroxy, alkoxy, amino and alkylamino substituents, are prepared by reacting a 1- benzyl - 4 - hydroxy - 4 - aminomethyl piperidine having the group R 2  on the methyl radical, with a carbonic diester, urea, urethane or phosgene, and if required, (1) introducing R 3  when other than H by reaction with R 3 X after replacement of said H by alkali metal, and (2) introducing R 1  when other than benzyl by hydrogenation and reaction with R 3 X, X being halogen or a tosyl group. 1 - Benzyl - 4 - hydroxy - 4 - (1 - aminoethyl) and 4-(α-aminobenzyl) piperidines are prepared by hydrogenation and treatment with hot HCl of the corresponding 1-benzyl-4-tetrahydropyran - 2 - yl - oxy) - 4 - (1 - imino - methyl) piperidine produced by hydrolysis of the product of a Grignard reaction between 1- benzyl - 4 - cyano - 4 - (tetrahydropyran - 2 - yl-oxy)-piperidine and R 2 MgHal. 1 - Benzyl - 4 - cyano - 4 - (tetrahydropyran- 2-yl-oxy)-piperidine is prepared by addition of dihydropyran, in an acidic medium, to 1- benzyl-piperidine-4-one cyanohydrin.